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https://sourceware.org/git/glibc.git
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s390: Consolidate Linux syscall definition
The {INTERNAL,INLINE}_SYSCALL are defined only on s390 sysdep.h.
Checked on s390x-linux-gnu and s390-linux-gnu.
This commit is contained in:
Adhemerval Zanella
parent
be74b42ee2
commit
9a973da617
@ -38,9 +38,6 @@
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/* in newer 2.1 kernels __NR_syscall is missing so we define it here */
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#define __NR_syscall 0
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#undef SYS_ify
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#define SYS_ify(syscall_name) __NR_##syscall_name
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#ifdef __ASSEMBLER__
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/* Linux uses a negative return value to indicate syscall errors, unlike
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@ -180,98 +177,6 @@
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#endif /* __ASSEMBLER__ */
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#undef INLINE_SYSCALL
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#define INLINE_SYSCALL(name, nr, args...) \
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({ \
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unsigned int _ret = INTERNAL_SYSCALL (name, , nr, args); \
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if (__glibc_unlikely (INTERNAL_SYSCALL_ERROR_P (_ret, ))) \
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{ \
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__set_errno (INTERNAL_SYSCALL_ERRNO (_ret, )); \
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_ret = 0xffffffff; \
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} \
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(int) _ret; })
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#undef INTERNAL_SYSCALL_DECL
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#define INTERNAL_SYSCALL_DECL(err) do { } while (0)
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#undef INTERNAL_SYSCALL_DIRECT
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#define INTERNAL_SYSCALL_DIRECT(name, err, nr, args...) \
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({ \
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DECLARGS_##nr(args) \
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register int _ret __asm__("2"); \
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__asm__ __volatile__ ( \
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"svc %b1\n\t" \
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: "=d" (_ret) \
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: "i" (__NR_##name) ASMFMT_##nr \
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: "memory" ); \
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_ret; })
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#undef INTERNAL_SYSCALL_SVC0
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#define INTERNAL_SYSCALL_SVC0(name, err, nr, args...) \
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({ \
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DECLARGS_##nr(args) \
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register unsigned long _nr __asm__("1") = (unsigned long)(__NR_##name); \
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register int _ret __asm__("2"); \
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__asm__ __volatile__ ( \
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"svc 0\n\t" \
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: "=d" (_ret) \
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: "d" (_nr) ASMFMT_##nr \
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: "memory" ); \
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_ret; })
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#undef INTERNAL_SYSCALL_NCS
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#define INTERNAL_SYSCALL_NCS(no, err, nr, args...) \
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({ \
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DECLARGS_##nr(args) \
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register unsigned long _nr __asm__("1") = (unsigned long)(no); \
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register int _ret __asm__("2"); \
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__asm__ __volatile__ ( \
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"svc 0\n\t" \
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: "=d" (_ret) \
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: "d" (_nr) ASMFMT_##nr \
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: "memory" ); \
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_ret; })
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#undef INTERNAL_SYSCALL
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#define INTERNAL_SYSCALL(name, err, nr, args...) \
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(((__NR_##name) < 256) \
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? INTERNAL_SYSCALL_DIRECT(name, err, nr, args) \
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: INTERNAL_SYSCALL_SVC0(name, err,nr, args))
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#undef INTERNAL_SYSCALL_ERROR_P
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#define INTERNAL_SYSCALL_ERROR_P(val, err) \
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((unsigned int) (val) >= 0xfffff001u)
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#undef INTERNAL_SYSCALL_ERRNO
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#define INTERNAL_SYSCALL_ERRNO(val, err) (-(val))
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#define DECLARGS_0()
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#define DECLARGS_1(arg1) \
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register unsigned long gpr2 __asm__ ("2") = (unsigned long)(arg1);
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#define DECLARGS_2(arg1, arg2) \
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DECLARGS_1(arg1) \
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register unsigned long gpr3 __asm__ ("3") = (unsigned long)(arg2);
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#define DECLARGS_3(arg1, arg2, arg3) \
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DECLARGS_2(arg1, arg2) \
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register unsigned long gpr4 __asm__ ("4") = (unsigned long)(arg3);
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#define DECLARGS_4(arg1, arg2, arg3, arg4) \
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DECLARGS_3(arg1, arg2, arg3) \
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register unsigned long gpr5 __asm__ ("5") = (unsigned long)(arg4);
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#define DECLARGS_5(arg1, arg2, arg3, arg4, arg5) \
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DECLARGS_4(arg1, arg2, arg3, arg4) \
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register unsigned long gpr6 __asm__ ("6") = (unsigned long)(arg5);
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#define DECLARGS_6(arg1, arg2, arg3, arg4, arg5, arg6) \
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DECLARGS_5(arg1, arg2, arg3, arg4, arg5) \
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register unsigned long gpr7 __asm__ ("7") = (unsigned long)(arg6);
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#define ASMFMT_0
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#define ASMFMT_1 , "0" (gpr2)
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#define ASMFMT_2 , "0" (gpr2), "d" (gpr3)
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#define ASMFMT_3 , "0" (gpr2), "d" (gpr3), "d" (gpr4)
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#define ASMFMT_4 , "0" (gpr2), "d" (gpr3), "d" (gpr4), "d" (gpr5)
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#define ASMFMT_5 , "0" (gpr2), "d" (gpr3), "d" (gpr4), "d" (gpr5), "d" (gpr6)
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#define ASMFMT_6 , "0" (gpr2), "d" (gpr3), "d" (gpr4), "d" (gpr5), "d" (gpr6), "d" (gpr7)
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/* Pointer mangling support. */
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#if IS_IN (rtld)
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/* We cannot use the thread descriptor because in ld.so we use setjmp
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@ -50,9 +50,6 @@
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# define __NR_pwrite __NR_pwrite64
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#endif
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#undef SYS_ify
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#define SYS_ify(syscall_name) __NR_##syscall_name
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#ifdef __ASSEMBLER__
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/* Linux uses a negative return value to indicate syscall errors, unlike
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@ -186,100 +183,6 @@
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#endif /* __ASSEMBLER__ */
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#undef INLINE_SYSCALL
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#define INLINE_SYSCALL(name, nr, args...) \
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({ \
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long _ret = INTERNAL_SYSCALL (name, , nr, args); \
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if (__glibc_unlikely (INTERNAL_SYSCALL_ERROR_P (_ret, ))) \
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{ \
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__set_errno (INTERNAL_SYSCALL_ERRNO (_ret, )); \
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_ret = -1; \
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} \
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_ret; })
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#undef INTERNAL_SYSCALL_DECL
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#define INTERNAL_SYSCALL_DECL(err) do { } while (0)
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#undef INTERNAL_SYSCALL_DIRECT
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#define INTERNAL_SYSCALL_DIRECT(name, err, nr, args...) \
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({ \
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DECLARGS_##nr(args) \
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register long _ret __asm__("2"); \
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__asm__ __volatile__ ( \
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"svc %b1\n\t" \
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: "=d" (_ret) \
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: "i" (__NR_##name) ASMFMT_##nr \
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: "memory" ); \
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_ret; })
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#undef INTERNAL_SYSCALL_SVC0
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#define INTERNAL_SYSCALL_SVC0(name, err, nr, args...) \
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({ \
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DECLARGS_##nr(args) \
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register unsigned long _nr __asm__("1") = (unsigned long)(__NR_##name); \
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register long _ret __asm__("2"); \
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__asm__ __volatile__ ( \
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"svc 0\n\t" \
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: "=d" (_ret) \
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: "d" (_nr) ASMFMT_##nr \
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: "memory" ); \
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_ret; })
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#undef INTERNAL_SYSCALL_NCS
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#define INTERNAL_SYSCALL_NCS(no, err, nr, args...) \
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({ \
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DECLARGS_##nr(args) \
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register unsigned long _nr __asm__("1") = (unsigned long)(no); \
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register long _ret __asm__("2"); \
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__asm__ __volatile__ ( \
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"svc 0\n\t" \
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: "=d" (_ret) \
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: "d" (_nr) ASMFMT_##nr \
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: "memory" ); \
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_ret; })
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#undef INTERNAL_SYSCALL
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#define INTERNAL_SYSCALL(name, err, nr, args...) \
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(((__NR_##name) < 256) \
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? INTERNAL_SYSCALL_DIRECT(name, err, nr, args) \
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: INTERNAL_SYSCALL_SVC0(name, err,nr, args))
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#undef INTERNAL_SYSCALL_ERROR_P
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#define INTERNAL_SYSCALL_ERROR_P(val, err) \
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((unsigned long) (val) >= -4095UL)
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#undef INTERNAL_SYSCALL_ERRNO
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#define INTERNAL_SYSCALL_ERRNO(val, err) (-(val))
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#define DECLARGS_0()
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#define DECLARGS_1(arg1) \
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register unsigned long gpr2 __asm__ ("2") = (unsigned long)(arg1);
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#define DECLARGS_2(arg1, arg2) \
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DECLARGS_1(arg1) \
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register unsigned long gpr3 __asm__ ("3") = (unsigned long)(arg2);
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#define DECLARGS_3(arg1, arg2, arg3) \
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DECLARGS_2(arg1, arg2) \
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register unsigned long gpr4 __asm__ ("4") = (unsigned long)(arg3);
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#define DECLARGS_4(arg1, arg2, arg3, arg4) \
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DECLARGS_3(arg1, arg2, arg3) \
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register unsigned long gpr5 __asm__ ("5") = (unsigned long)(arg4);
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#define DECLARGS_5(arg1, arg2, arg3, arg4, arg5) \
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DECLARGS_4(arg1, arg2, arg3, arg4) \
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register unsigned long gpr6 __asm__ ("6") = (unsigned long)(arg5);
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#define DECLARGS_6(arg1, arg2, arg3, arg4, arg5, arg6) \
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DECLARGS_5(arg1, arg2, arg3, arg4, arg5) \
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register unsigned long gpr7 __asm__ ("7") = (unsigned long)(arg6);
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#define ASMFMT_0
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#define ASMFMT_1 , "0" (gpr2)
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#define ASMFMT_2 , "0" (gpr2), "d" (gpr3)
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#define ASMFMT_3 , "0" (gpr2), "d" (gpr3), "d" (gpr4)
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#define ASMFMT_4 , "0" (gpr2), "d" (gpr3), "d" (gpr4), "d" (gpr5)
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#define ASMFMT_5 , "0" (gpr2), "d" (gpr3), "d" (gpr4), "d" (gpr5), "d" (gpr6)
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#define ASMFMT_6 , "0" (gpr2), "d" (gpr3), "d" (gpr4), "d" (gpr5), "d" (gpr6), "d" (gpr7)
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#define SINGLE_THREAD_BY_GLOBAL 1
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/* Pointer mangling support. */
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#if IS_IN (rtld)
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/* We cannot use the thread descriptor because in ld.so we use setjmp
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@ -16,6 +16,107 @@
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef __ASSEMBLY__
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#undef SYS_ify
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#define SYS_ify(syscall_name) __NR_##syscall_name
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#undef INLINE_SYSCALL
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#define INLINE_SYSCALL(name, nr, args...) \
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({ \
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long int _ret = INTERNAL_SYSCALL (name, , nr, args); \
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if (__glibc_unlikely (INTERNAL_SYSCALL_ERROR_P (_ret, ))) \
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{ \
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__set_errno (INTERNAL_SYSCALL_ERRNO (_ret, )); \
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_ret = -1; \
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} \
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_ret; })
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#undef INTERNAL_SYSCALL_DECL
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#define INTERNAL_SYSCALL_DECL(err) do { } while (0)
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#undef INTERNAL_SYSCALL_DIRECT
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#define INTERNAL_SYSCALL_DIRECT(name, err, nr, args...) \
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({ \
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DECLARGS_##nr(args) \
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register long int _ret __asm__("2"); \
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__asm__ __volatile__ ( \
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"svc %b1\n\t" \
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: "=d" (_ret) \
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: "i" (__NR_##name) ASMFMT_##nr \
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: "memory" ); \
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_ret; })
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#undef INTERNAL_SYSCALL_SVC0
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#define INTERNAL_SYSCALL_SVC0(name, err, nr, args...) \
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({ \
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DECLARGS_##nr(args) \
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register unsigned long int _nr __asm__("1") = \
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(unsigned long int)(__NR_##name); \
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register long int _ret __asm__("2"); \
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__asm__ __volatile__ ( \
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"svc 0\n\t" \
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: "=d" (_ret) \
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: "d" (_nr) ASMFMT_##nr \
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: "memory" ); \
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_ret; })
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#undef INTERNAL_SYSCALL_NCS
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#define INTERNAL_SYSCALL_NCS(no, err, nr, args...) \
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({ \
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DECLARGS_##nr(args) \
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register unsigned long int _nr __asm__("1") = (unsigned long int)(no); \
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register long int _ret __asm__("2"); \
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__asm__ __volatile__ ( \
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"svc 0\n\t" \
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: "=d" (_ret) \
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: "d" (_nr) ASMFMT_##nr \
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: "memory" ); \
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_ret; })
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#undef INTERNAL_SYSCALL
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#define INTERNAL_SYSCALL(name, nr, args...) \
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(((__NR_##name) < 256) \
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? INTERNAL_SYSCALL_DIRECT(name, nr, args) \
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: INTERNAL_SYSCALL_SVC0(name, nr, args))
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#undef INTERNAL_SYSCALL_ERROR_P
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#define INTERNAL_SYSCALL_ERROR_P(val, err) \
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((unsigned long int) (val) > -4096UL)
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#undef INTERNAL_SYSCALL_ERRNO
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#define INTERNAL_SYSCALL_ERRNO(val, err) (-(val))
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#define DECLARGS_0()
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#define DECLARGS_1(arg1) \
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register unsigned long int gpr2 __asm__ ("2") = (unsigned long int)(arg1);
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#define DECLARGS_2(arg1, arg2) \
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DECLARGS_1(arg1) \
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register unsigned long int gpr3 __asm__ ("3") = (unsigned long int)(arg2);
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#define DECLARGS_3(arg1, arg2, arg3) \
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DECLARGS_2(arg1, arg2) \
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register unsigned long int gpr4 __asm__ ("4") = (unsigned long int)(arg3);
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#define DECLARGS_4(arg1, arg2, arg3, arg4) \
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DECLARGS_3(arg1, arg2, arg3) \
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register unsigned long int gpr5 __asm__ ("5") = (unsigned long int)(arg4);
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#define DECLARGS_5(arg1, arg2, arg3, arg4, arg5) \
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DECLARGS_4(arg1, arg2, arg3, arg4) \
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register unsigned long int gpr6 __asm__ ("6") = (unsigned long int)(arg5);
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#define DECLARGS_6(arg1, arg2, arg3, arg4, arg5, arg6) \
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DECLARGS_5(arg1, arg2, arg3, arg4, arg5) \
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register unsigned long int gpr7 __asm__ ("7") = (unsigned long int)(arg6);
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#define ASMFMT_0
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#define ASMFMT_1 , "0" (gpr2)
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#define ASMFMT_2 , "0" (gpr2), "d" (gpr3)
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#define ASMFMT_3 , "0" (gpr2), "d" (gpr3), "d" (gpr4)
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#define ASMFMT_4 , "0" (gpr2), "d" (gpr3), "d" (gpr4), "d" (gpr5)
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#define ASMFMT_5 , "0" (gpr2), "d" (gpr3), "d" (gpr4), "d" (gpr5), "d" (gpr6)
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#define ASMFMT_6 , "0" (gpr2), "d" (gpr3), "d" (gpr4), "d" (gpr5), "d" (gpr6), "d" (gpr7)
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#define SINGLE_THREAD_BY_GLOBAL 1
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#define VDSO_NAME "LINUX_2.6.29"
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#define VDSO_HASH 123718585
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@ -29,3 +130,5 @@
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#endif
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#define HAVE_GETTIMEOFDAY_VSYSCALL "__kernel_gettimeofday"
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#define HAVE_GETCPU_VSYSCALL "__kernel_getcpu"
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#endif
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